implemented separate waveform cache

2022-05-29 17:52:35 -07:00
parent 826090b621
commit 2f7dc3c98b
28 changed files with 381 additions and 178 deletions
@@ -0,0 +1,85 @@
+/***
+
+  Olive - Non-Linear Video Editor
+  Copyright (C) 2022 Olive Team
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+***/
+
+#ifndef AUDIOWAVEFORMCACHE_H
+#define AUDIOWAVEFORMCACHE_H
+
+#include "audio/audiovisualwaveform.h"
+#include "playbackcache.h"
+
+namespace olive {
+
+class AudioWaveformCache : public PlaybackCache
+{
+  Q_OBJECT
+public:
+  AudioWaveformCache(QObject *parent = nullptr);
+
+  void WriteWaveform(const TimeRange &range, const TimeRangeList &valid_ranges, const AudioVisualWaveform *waveform);
+
+  const AudioParams &GetParameters() const { return params_; }
+  void SetParameters(const AudioParams &p) { params_ = p; }
+
+  void Draw(QPainter* painter, const QRect &rect, const double &scale, const rational &start_time) const;
+
+  AudioVisualWaveform::Sample GetSummaryFromTime(const rational &start, const rational &length) const;
+
+  rational length() const;
+
+private:
+  class TimeRangeWithWaveform : public TimeRange
+  {
+  public:
+    TimeRangeWithWaveform() = default;
+    TimeRangeWithWaveform(const TimeRange &r) :
+      TimeRange(r)
+    {
+    }
+
+    void set_in(const rational& in)
+    {
+      waveform.TrimIn(in - this->in());
+      TimeRange::set_in(in);
+    }
+
+    void set_out(const rational& out)
+    {
+      waveform.Resize(out - this->in());
+      TimeRange::set_out(out);
+    }
+
+    void set_range(const rational& in, const rational& out)
+    {
+      waveform.TrimRange(in, out-in);
+      TimeRange::set_range(in, out);
+    }
+
+    AudioVisualWaveform waveform;
+  };
+
+  QVector<TimeRangeWithWaveform> waveforms_;
+
+  AudioParams params_;
+
+};
+
+}
+
+#endif // AUDIOWAVEFORMCACHE_H